fix #641 typo

[jehartzog]

You swapped value and label in the fix for #641.

This corrects that swap.

You will also want to update your docs as it currently uses a swapped example:

const selectOptions = [
  { label: 0, value: 'good' },
  { label: 1, value: 'Bad' },
  { label: 2, value: 'unknown' }
];

[jehartzog]

@AllenFang Tagging you as requested. Thanks for getting the updates into a new release so quickly :D.

[AllenFang]

ok, I will handle this, thanks

[AllenFang]

https://react-bootstrap-table.github.io/react-bootstrap-table2/blog/2018/11/10/version-bump.html

Please upgrade to newest version, thanks.